Fuel-gas burner.



H HSOUTHWORTH.

v FUEL GAS BURNER.

APPLICATION FILED MAY 8, 1914 Patented Nov. 30, 1915.

3 SHEETSSHEET I H. H. SOUTHWORTH.

FUEL GAS BURNER.

APPLICATION FILED MAY 8, 1914-.

3 SHEETS-SHEET 2 Patented Nov. 30, 1915.

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FUEL GAS BURNER.

APPLICATION HLED MAYB. 1914.

1 ,1 62,31 5 Patented Nov. 30, 1915.

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'Burners, of which ire r ariwr inn HARRISON H. SOUTHWORTH, or CLEVELAND, 01110, ASSIGNOR, BY-MESNE ASSIGN- MENTS, TO THE ICELESS MACHINE COMPANY, or CLEVELAND, OHIO, A CORPORA- TION OF OHIO.

FUEL- GAS BURNER.

To all whom it may concern.

Be it known that I, Hanmsow H. SOUTH- won'rrr, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful;Improvement in Fuel-Gas the following is a full',

' being clear, and exact description, reference had to the accompanying drawings.

This invention relates to improvements in burners, andone bf the main objects of the invention is to provide a burner applicable for connection with-devices in which, during certain periods of the operation of said vices, cooling or other liquid is caused to flow over or about the burner and is apt to drip upon the same and stop up the orifices thereof. Ari example of such adevice is an absorption refrigerating apparatus wherein a still is alternately heated by the burner and cooled by cooling liquid. In such cases with burners heretofore used, after the liquid is turned off and the gas 'is againturned on, the small orifices of the burner, if made small enough to prevent back firing, are frequently plugged by the liquid and fail to permit the escape of the gas and thus greatly interfere with the efficiency, of the burner.

overcome this diiiicultv.

Another feature of my invention consists of an improved nected with the burner whereby the pilot is removed at'sorne distance from the burner so as not to be extinguished by the liquid, falling on or about the burner, or the resulting hot vapor, and so arranged that when the gas is turned on flame is projected from the pilot light to the burner itself, thus bridging this space and lighting the burner. This attaclnnent possesses other advantages which appear more clearly in the following specification.

In the drawings Figure 1 is a view representing a vertical section through a refrigerating apparatus provided with a still which is alternately heated by means of my improved burner .and cooled by water; Fig. 2 is a plan view of the burner as applied to refrigerating apparatus as shown in Fig. 1' looked at as viewed from above aplane indicated by the line 2-2 of Fig. 1; Fig. 3 1s a view representing on an enlarged scale a Specification of Letters Patent.

cooled lo pilot light attachment con-.

burner in a plane indicated by the line 33 of Fig. 2; Fig. i is a transverse section through the burner in a plane indicated by the line 44 of Fig. 3; Fig. 5 is a detailed sect onal view on an enlarged scale of a valve fittlng used in my apparatus, the plane of the section being indicated by the line 55 of Fig. 1; Fig. 6 is a partial vertical section on an enlarged scale of the burner an pllot light attachment, the plane of the section being .indicated by the line 6-6 of Fig. 2; Fig. 7 is a View representing a vertical section through Fig. 6 in a plane indicated by the line 77 thereof; Fig. 8 is a top plan view showing a modified form of my burner and pilot light; Fig. 9 is a side elevation of the modification shown in Fig. 8; Fig. 10 is a sectional view through the same, taken in a plane indicated by the line 10-10 of Fig. 8. 1

Referring now to the embodiments of my invention illustrated in the drawings, 11 indicates a. still in a refrigerating apparatus which-alternately acts as a generator and as an absorber and which during the period of generation is 'eated from below by a burner and during the period of absorption is y means of cooling water.

The refrigerating apparatus shown in the drawings is of that type described in an aplication executed of even date herewith and filed on the 8th day of May, 191-1, Serial No. 837,118. 12 indicates the condenser in said apparatus and 13 a water tank in which said condenser is located.

14 indicates a cooling water pipe extend- Patented Nov. 30, 1915. Application filed May a, 1914. Serial No. 837,117.

15' indicates my improved burner which extends longitudinally belowthe still and is adapted to heat the same during the period when said still is acting as a generator. The water after passing'froin the discharge pipe 14 flows aboutthe body of the still and drops from thence into a tank 16 which overflows into 'a sewer connection. Manifestly the water will fall upon the burner and will enter the openings therein to a certain extent. 4

Automatic means for controlling the supplv of cooling water to the discharge pipe 14 and for controlling the supply of gas to the burner are provided, but as these and the other features of the refrigerating ap- Accordingly, no matter how much Iwater paratus as such, form 110, part of the pres may drop from the still onto the burner .ent-invention andare fully described in the: after the supply of water fl-riwing over the applicationfabovereferred, to, further refstill has been shut ofi', the nippleswill; all erence theretoin the present specification is be clear and open for the passage'bf gas not necessary. i t a The burner pipe-has .con'nected't'oit two The burner 15 consists of a pipe 17 exlongitudinally spaced branch pipes 27, 2.7, tending thefull lengtho' f the stillor other (as shown in Fig. 2) which are each con device to be heated connected atits ends by nected; by a suitable air mixing'devic'e 28 suitable elbow fittings 18 to uprightpipes witha pipe 29 in which is interposed I 19 S id i s 19 90pm t th botto three-way fitting 30 connectedto the main and are connected by flanged fittings 20 to gas supply pipe 31 (see Figs. 1, 2' and 5). brackets 21 by means of which theyare sup The supply of gas to the three-way-fitting ported as shown from bars 22' extending is controlled by suitable valves which in the .'acrdss' and attached to the side wallsof the apparatus referred to are controlled autotank 16.. The pipes 19-extenddownwardly matically.

. a sufficient distance sothat their lower ends 2 indicates a pipe connected with thewill be" sealed by means of the water conthird way in the fitting 30 and acting to tained in the tankin which the water supply gas to the pilot light 33. This sup-' 20 stands, asshown in the drawings, at a level ply may be regulated by a threaded needle indicated by the dot and dash line 23. This 32 adapted to close the passage leadingto construction provides a burner pipe sealed the pipe 32. The pilot light-33 consists .of at both ends-and at the same time one from a a g 34 a g 11 0108861 811d ,1 P which water, flowing into 'it, is readily diswall 36 and side walls 37, 37'and being open 25 charged, running out-at each end of the at the bottom and at its opposite end. The pipe 17- and down through the pipe 19 into side walls 37 are attached by means of suitthewater contained in the tank. The wal ears 3 to the burner pipe 17 in ter'in the tank isof course maintained at" a such manner that the open end ofthe casing substantially constant level by means of an is open up to a plane slightly above the 30 overflow outlet pipe level of the burner nipples 25. p Thereare placed at longitudinally spaced 39 indicates a burner tube fixed inthe intervals in the'pip'e 17, a plurality of upclosed end 35 of the casing 34 and; extending ri'ghtdischzirgefnipples by means of longitudinally through said casing to a which the combustible mixture is discharged point near its open end adjacent to the 35 from the; burner. Said nipples consist of plane of the nipples 25. The pipe 32 is se- 10 short tubes secured in suitable apertures orcured in the end of the said burner tube. openings in'the top of the pipe 17., As The burner tube is preferably provided at shown,"and as a preferred construction, the its outer inlet end with air openings 40 a'nd alternate nipples are placed at opposite anmay have a plurality of longitudinally 4o gle's to a vertical plane, as clearly illustrated spa d p gs i its 15013 Side- The 1 in Fig. 4, in order to spread the flame over charge end of the burner tube is pinched, a larger area of the part (in this case the as indicated in F ig. 6, to contract the outer still) that is to be heated. This also proopening and thus retard the flow of gas vides better secondary air mixture for the therethrough. As shown, the casing 34 has 45 flame. a a lateral extension 42 inwhich is formed a In order to obtain'the best etficiency of passage 43. connected by a-pipe 44 'with. a the combustible mixture escaping through source. of fuel gas supply such that it will the burner openings formed by the bore of have a constant supply of gas and with upthe nipples 25,; in the burner, it is desirable right passages 45, 45 opening through the 50 to have these openings very small. Vater, top of the casing and provided with burner 7 however, tends to-rema in in these nipples by tips 46, 46. y i capillary action and if the nipples are cut 4 7 indicates a stack placed on top of the I 011' straight across their lower end, the drop casing 34 and inclosing the burner tips 46. will'adhereto the lower end of the nipple, Said. stack has a hinged or movable cover 55 thereby pluggin'gthe same and preventing l8 for convenience in lighting the gas at the 2 the escapem'ent of" gas therethrough. To burner tips 46 and also has ventilation openprevent this, I provide a point at the lower ings 49' to supply air to said burner tips. A end of the nipples formed by beveling them passage 50' connects the interior of the easat a sharp angle,'a's shown tit-26, which. ing 34 with the space within the stack 47 flocauses the water toflowofl' from the lower and opens one or more ofthe burner openend of the nipples instead of being retained. ings 41 in the burner tube 39 to the inthereby. I This allows water which gets into, flu'ence of the burnin gas at the tips 46! the nipples to be drawn" at once into the Y Theoperation of the pilot: light is as folburner pipe 17, through which it may, flow I lows: The gas is constantly burning at the 5 into .the pipcs'19 and tank 16, as described. burner tips 4C6. When the gas is turned into 0 I the branch pipes pipe 1 7-whence it escapes as a the three-way fitting 30 it flows through the pipes29, the air mixing-devices 23, 28, and 27, 27 tOlJlIBlTlEllH burner combustible mixture through the burner nipples At the same time gas flows through the pipe 32 into the burner tube 39 of the pilot light, drawing in with it a supply of air through the openings 4E0. This mixture of air and gas escapes through the burner openings 41 and through the contracted end of the burner tube 39 and some of it entering through the passage hood of the nipples 46 is ignited. The flame thus started flashes along the length of the burner tube lighting the gas escaping through the successive openings ll until it is finally communicated to the gasescapmg through the contracted-end of the burner tube whence the flame is projected to the combustible mixture escaping from the nipples of the mainburner, igniting the same.

In Figs. 8 to 10 inclusive, I have shown a modification of the burner more particularly intended for use in cases where the main burner tube is short and the pilot light maybe located conveniently at the end thereof instead of at a' point midway of the ends as in the case just described. In this case 17 indicates the burner pipe, 18, 19", the fittings at the end thereof and, 19 19 the upright pipes which are intended to be sealed by water as before. The nipples 25 in this case are shown as all located in a vertical plane instead of in lined alternately on opposite sides of said plane as in the prior described construction. 34 indicates a casing inclosing the burner tube 39 as above described and 46 tube nipples intended to be constantly burning. All of the like parts are indicated by like numerals with the superscript a. The burner tube 39 in .this case, however, instead of providing its own mixture of air with the gas is arranged to take ,ofi a supply of mixed gas and air from the same sourcew'hich supplies said mixture to the main burner pipe 17. The T-fitting 19 which provides the connection between the pipe 1 7?and one of the upright pipes 19 has one end connected to a mixing valve.

The tube39 has a branch 52 which is attached to and opens laterally into the T-fitting 19 Said branch has an end part 53 which extends across entering the T-shaped fitting 19 the tube being closedat the end but being provided with a lateral opening 54: which is adapted to take up some of the mixture as the gas proceeds on its path toward the main burner. The operation in this case is exactly the same as in the case first described.

From the'foregoing description it will be seen that I have provided a burner over which water may flow without stopping up 50 into the neighbor- I ing, a series of indicates the burner the path of the gas opening the orifices thereof and which is particularly adapted for use with devices in which a member is adapted to be alternately heated by the burner and cooled by cooling water flowing ov'cr the same, the burner being sealed at each end by the water in a tank or'other receptacle beneath the burner and into which the water flowing through the orifices of the burner is adapted to drain, and also that I have provided a burner haw ing its orifices formed by nipples which can-- not retain water by capillary action but from the lower ends of which the water will drip freely without stopping up or plug ging the same.

Having thus I claim is 1. In a burner, the combination of a tube having an inlet passage and a series of nipples projecting through the wall of the tube, said nipples being arranged ina plurality of rows oppositely inclined, the adjacent nipples in the adjacent rows being out of transverse alinement. I

2. A burner comprising a casing and a series of small tubes extending through the wall thereof and having a bore no larger in diameter than that of a drop of water, the. inner end of such small tubes having their openings elongated to prevent the tube being sealed by such drop.

- 3. In a burner, the combination of a cas tubes extending into the casing and forming the outlet orifices of the burner, said tubes having an elongated opening formed at their inner ends to prevent water forming a globule extending across the bore of the tube.

l. In a burner, the combination of a casing, a series of nipples mounted in said cas ing forming the outlet orifices thereof, said described my invention, what nipples having their lower ends beveled to prevent a globule of water forming across the bore of the nipples thereby preventing the escape of gas therefrom.

5. The combination of a gas burner, means for directing water over it;'a downwardly opening port in said burner, and means for retaining water beneath said burner so that its surface will come above the port and seal the same; v

6. The combination with a. burner, of a member adapted to be alternately heated thereby and cooled by water, said burner having orifices comprising passages the inside openings of which are vertically elongated to prevent closing the same, and said burner having a downwardly extending passage with an below the burner, a receptacle beneath the burner adapted to retain water at. a height sufiicient to close said last named openings 7. In a burner, the combination of a casing having a series of upwardly facing water forming inglobules openings in its upper surface Wherebywate r may drop into the casing, a draining plpe depending from the casing, and a vessel adapted to contain liquid over the lower end 5 of the-draining pipe.

8. In a burner, the combination of a hori zontal tube havingdischarge openings, an elbow at the end of the tube communicating therewith, an uprightpipe communicating 10 with the elbow and having an opening below said elbow, a support connected to the upright 1" pipe, I and liquid above said opening of said upright jpipe.

means for maintainingv 9. In a burner, the combination of a cas-, 5 having upward discharge openings, a

HARRISON H. SOUTHWQRTH.

\Vitnesses:

Tnos. H. WELLS, JUSTIN MACKLIN. 

